This addendum is to add the National Institute of Neurological Disorders and Stroke (NINDS) as a participating institute on program announcement PAR-03-036, "Innovative Exploratory Studies and Technology Development in Neuroinformatics Research (R21)," which was released in the NIH guide for grants and contracts on December 4, 2002 at http://grants.nih.gov/grants/guide/pa-files/PAR-03-036.html.